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<FONT color="green">001</FONT>    package org.hackystat.ui.sensordataviewer.client;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import java.util.ArrayList;<a name="line.3"></a>
<FONT color="green">004</FONT>    import java.util.Date;<a name="line.4"></a>
<FONT color="green">005</FONT>    <a name="line.5"></a>
<FONT color="green">006</FONT>    import com.google.gwt.core.client.EntryPoint;<a name="line.6"></a>
<FONT color="green">007</FONT>    import com.google.gwt.user.client.Cookies;<a name="line.7"></a>
<FONT color="green">008</FONT>    import com.google.gwt.user.client.Timer;<a name="line.8"></a>
<FONT color="green">009</FONT>    import com.google.gwt.user.client.Window;<a name="line.9"></a>
<FONT color="green">010</FONT>    import com.google.gwt.user.client.rpc.AsyncCallback;<a name="line.10"></a>
<FONT color="green">011</FONT>    import com.google.gwt.user.client.ui.Button;<a name="line.11"></a>
<FONT color="green">012</FONT>    import com.google.gwt.user.client.ui.ChangeListener;<a name="line.12"></a>
<FONT color="green">013</FONT>    import com.google.gwt.user.client.ui.ClickListener;<a name="line.13"></a>
<FONT color="green">014</FONT>    import com.google.gwt.user.client.ui.FocusListener;<a name="line.14"></a>
<FONT color="green">015</FONT>    import com.google.gwt.user.client.ui.HTML;<a name="line.15"></a>
<FONT color="green">016</FONT>    import com.google.gwt.user.client.ui.HorizontalPanel;<a name="line.16"></a>
<FONT color="green">017</FONT>    import com.google.gwt.user.client.ui.Image;<a name="line.17"></a>
<FONT color="green">018</FONT>    import com.google.gwt.user.client.ui.Label;<a name="line.18"></a>
<FONT color="green">019</FONT>    import com.google.gwt.user.client.ui.ListBox;<a name="line.19"></a>
<FONT color="green">020</FONT>    import com.google.gwt.user.client.ui.PasswordTextBox;<a name="line.20"></a>
<FONT color="green">021</FONT>    import com.google.gwt.user.client.ui.RootPanel;<a name="line.21"></a>
<FONT color="green">022</FONT>    import com.google.gwt.user.client.ui.ScrollPanel;<a name="line.22"></a>
<FONT color="green">023</FONT>    import com.google.gwt.user.client.ui.TextBox;<a name="line.23"></a>
<FONT color="green">024</FONT>    import com.google.gwt.user.client.ui.TreeItem;<a name="line.24"></a>
<FONT color="green">025</FONT>    import com.google.gwt.user.client.ui.VerticalPanel;<a name="line.25"></a>
<FONT color="green">026</FONT>    import com.google.gwt.user.client.ui.Widget;<a name="line.26"></a>
<FONT color="green">027</FONT>    <a name="line.27"></a>
<FONT color="green">028</FONT>    <a name="line.28"></a>
<FONT color="green">029</FONT>    /**<a name="line.29"></a>
<FONT color="green">030</FONT>     * A widget to view realtime Hackystat sensor data.<a name="line.30"></a>
<FONT color="green">031</FONT>     * @author David J. Nickles<a name="line.31"></a>
<FONT color="green">032</FONT>     */<a name="line.32"></a>
<FONT color="green">033</FONT>    public class CompositeWidget implements EntryPoint, ClickListener, ChangeListener, FocusListener {<a name="line.33"></a>
<FONT color="green">034</FONT>      /** {@literal} WAIT_IMAGE icon. */        <a name="line.34"></a>
<FONT color="green">035</FONT>      public static final String WAIT_IMAGE = "images/wait-animated.gif"; <a name="line.35"></a>
<FONT color="green">036</FONT>      /** {@literal} TIMER_IMAGE event state. */  <a name="line.36"></a>
<FONT color="green">037</FONT>      private static final String TIMER_IMAGE = "images/clock.gif";   <a name="line.37"></a>
<FONT color="green">038</FONT>      /** {@literal} HOST_IMAGE host icon. */        <a name="line.38"></a>
<FONT color="green">039</FONT>      private static final String HOST_IMAGE = "images/host.gif"; <a name="line.39"></a>
<FONT color="green">040</FONT>      /** {@literal} HOST_INVALID host invalid event state. */        <a name="line.40"></a>
<FONT color="green">041</FONT>      private static final String HOST_INVALID = "images/host-warning.gif"; <a name="line.41"></a>
<FONT color="green">042</FONT>      /** {@literal} HOST_VALID host valid event state. */  <a name="line.42"></a>
<FONT color="green">043</FONT>      private static final String HOST_VALID = "images/host-green.gif";  <a name="line.43"></a>
<FONT color="green">044</FONT>      /** {@literal}  USER_IMAGE user icon. */<a name="line.44"></a>
<FONT color="green">045</FONT>      private static final String USER_IMAGE = "images/user.gif";<a name="line.45"></a>
<FONT color="green">046</FONT>      /** {@literal} USER_INVALID user invalid event state. */        <a name="line.46"></a>
<FONT color="green">047</FONT>      private static final String USER_INVALID = "images/user-warning.gif"; <a name="line.47"></a>
<FONT color="green">048</FONT>      /** {@literal} USER_VALID user valid event state. */  <a name="line.48"></a>
<FONT color="green">049</FONT>      private static final String USER_VALID = "images/user-green.gif";  <a name="line.49"></a>
<FONT color="green">050</FONT>      /** {@literal} OPEN_BOOK journal open state. */        <a name="line.50"></a>
<FONT color="green">051</FONT>      private static final String OPEN_BOOK = "images/open-book.gif"; <a name="line.51"></a>
<FONT color="green">052</FONT>      /** {@literal} CLOSED_BOOK journal closed state. */        <a name="line.52"></a>
<FONT color="green">053</FONT>      private static final String CLOSED_BOOK = "images/closed-book.gif"; <a name="line.53"></a>
<FONT color="green">054</FONT>      /** {@literal} SMALLLABELSTYLE stylesheet class for labels. */  <a name="line.54"></a>
<FONT color="green">055</FONT>      private static final String SMALLLABELSTYLE = "label_sm";   <a name="line.55"></a>
<FONT color="green">056</FONT>      /** {@literal} SMALLLABELSTYLE stylesheet class for examples. */  <a name="line.56"></a>
<FONT color="green">057</FONT>      private static final String EXAMPLELABELSTYLE = "label_example"; <a name="line.57"></a>
<FONT color="green">058</FONT>      /** {@literal} VALIDLABELSTYLE stylesheet class for valid results. */  <a name="line.58"></a>
<FONT color="green">059</FONT>      private static final String VALIDLABELSTYLE = "label_valid"; <a name="line.59"></a>
<FONT color="green">060</FONT>      /** {@literal} INVALIDLABELSTYLE stylesheet class for invalid results. */  <a name="line.60"></a>
<FONT color="green">061</FONT>      private static final String INVALIDLABELSTYLE = "label_invalid";<a name="line.61"></a>
<FONT color="green">062</FONT>      /** {@literal} SMALLLABELSTYLE stylesheet class for examples. */  <a name="line.62"></a>
<FONT color="green">063</FONT>      private static final String SETTINGSPANELSTYLE = "settingsPanel"; <a name="line.63"></a>
<FONT color="green">064</FONT>      /** {@literal} PRCERRORNAME name for RPC errors. */  <a name="line.64"></a>
<FONT color="green">065</FONT>      private static final String PRCERRORNAME = "RPC client error"; <a name="line.65"></a>
<FONT color="green">066</FONT>      /** {@literal} DEFAULT default project name. */  <a name="line.66"></a>
<FONT color="green">067</FONT>      private static final String DEFAULT = "Default"; <a name="line.67"></a>
<FONT color="green">068</FONT>    <a name="line.68"></a>
<FONT color="green">069</FONT>      /* Sensorbase URI parameters */<a name="line.69"></a>
<FONT color="green">070</FONT>      private Timer poller;<a name="line.70"></a>
<FONT color="green">071</FONT>      private String newLineChar;<a name="line.71"></a>
<FONT color="green">072</FONT>      private String prevPollTstamp;<a name="line.72"></a>
<FONT color="green">073</FONT>      private String currPollTstamp;<a name="line.73"></a>
<FONT color="green">074</FONT>      private String lastArrivalTime;<a name="line.74"></a>
<FONT color="green">075</FONT>      private Date serverTstamp;<a name="line.75"></a>
<FONT color="green">076</FONT>      /* Widget UI elements */<a name="line.76"></a>
<FONT color="green">077</FONT>      private Button registerUserButton;<a name="line.77"></a>
<FONT color="green">078</FONT>      private ScrollPanel scrollPanel;<a name="line.78"></a>
<FONT color="green">079</FONT>      private ImageConsciousStackPanel compartments;<a name="line.79"></a>
<FONT color="green">080</FONT>      private EventCollection dataTree;<a name="line.80"></a>
<FONT color="green">081</FONT>      private TextBox userTextBox;<a name="line.81"></a>
<FONT color="green">082</FONT>      private PasswordTextBox passwordTextBox;<a name="line.82"></a>
<FONT color="green">083</FONT>      private Label hostLabel;<a name="line.83"></a>
<FONT color="green">084</FONT>      private Label userLabel;<a name="line.84"></a>
<FONT color="green">085</FONT>      private Label passwordLabel;<a name="line.85"></a>
<FONT color="green">086</FONT>      private Label hostPanelFeedback;<a name="line.86"></a>
<FONT color="green">087</FONT>      private Label userPanelFeedback;<a name="line.87"></a>
<FONT color="green">088</FONT>      private HTML timerPanelFeedback;<a name="line.88"></a>
<FONT color="green">089</FONT>      private HTML dataPanelFeedback;<a name="line.89"></a>
<FONT color="green">090</FONT>      private ListBox pollingBox;<a name="line.90"></a>
<FONT color="green">091</FONT>      private Image hostPanelImage;<a name="line.91"></a>
<FONT color="green">092</FONT>      private Image userPanelImage;<a name="line.92"></a>
<FONT color="green">093</FONT>      private Image timerPanelImage;<a name="line.93"></a>
<FONT color="green">094</FONT>      private Image dataPanelImage;<a name="line.94"></a>
<FONT color="green">095</FONT>      // New Display<a name="line.95"></a>
<FONT color="green">096</FONT>      private Boolean hostStatus;<a name="line.96"></a>
<FONT color="green">097</FONT>      private Boolean userStatus;<a name="line.97"></a>
<FONT color="green">098</FONT>      private Date cookieExpires;<a name="line.98"></a>
<FONT color="green">099</FONT>      private int lastCallTotal;<a name="line.99"></a>
<FONT color="green">100</FONT>      private int total;<a name="line.100"></a>
<FONT color="green">101</FONT>      private boolean rpcAvailable;<a name="line.101"></a>
<FONT color="green">102</FONT>      private boolean firstCalInit;<a name="line.102"></a>
<FONT color="green">103</FONT>      <a name="line.103"></a>
<FONT color="green">104</FONT>      /**<a name="line.104"></a>
<FONT color="green">105</FONT>       * This method sets the title in the gadget.<a name="line.105"></a>
<FONT color="green">106</FONT>       * @param title to display in the iGoogle gadget title bar.<a name="line.106"></a>
<FONT color="green">107</FONT>       */<a name="line.107"></a>
<FONT color="green">108</FONT>      public static native void setGadgetTitle(String title) /*-{<a name="line.108"></a>
<FONT color="green">109</FONT>        var ne = $wnd._nativeExtensions;<a name="line.109"></a>
<FONT color="green">110</FONT>        $wnd._nativeExtensions = false;<a name="line.110"></a>
<FONT color="green">111</FONT>        $wnd._IG_SetTitle(title);<a name="line.111"></a>
<FONT color="green">112</FONT>        $wnd._nativeExtensions = ne;<a name="line.112"></a>
<FONT color="green">113</FONT>      }-*/;<a name="line.113"></a>
<FONT color="green">114</FONT>    <a name="line.114"></a>
<FONT color="green">115</FONT>      /**<a name="line.115"></a>
<FONT color="green">116</FONT>       * This method tells the gadget to resize itself.<a name="line.116"></a>
<FONT color="green">117</FONT>       */<a name="line.117"></a>
<FONT color="green">118</FONT>      public static native void resizeGadget() /*-{<a name="line.118"></a>
<FONT color="green">119</FONT>        var ne = $wnd._nativeExtensions;<a name="line.119"></a>
<FONT color="green">120</FONT>        $wnd._nativeExtensions = false;<a name="line.120"></a>
<FONT color="green">121</FONT>        $wnd._IG_AdjustIFrameHeight();<a name="line.121"></a>
<FONT color="green">122</FONT>        $wnd._nativeExtensions = ne;<a name="line.122"></a>
<FONT color="green">123</FONT>      }-*/;<a name="line.123"></a>
<FONT color="green">124</FONT>      <a name="line.124"></a>
<FONT color="green">125</FONT>      /**<a name="line.125"></a>
<FONT color="green">126</FONT>       * This method creates and initializes the small gadget settings panel.<a name="line.126"></a>
<FONT color="green">127</FONT>       */<a name="line.127"></a>
<FONT color="green">128</FONT>      private void initLayout() {<a name="line.128"></a>
<FONT color="green">129</FONT>        this.hostStatus = Boolean.FALSE;<a name="line.129"></a>
<FONT color="green">130</FONT>        this.userStatus = Boolean.FALSE;<a name="line.130"></a>
<FONT color="green">131</FONT>        this.newLineChar = "&lt;br /&gt;";<a name="line.131"></a>
<FONT color="green">132</FONT>        this.cookieExpires = new Date((new Date()).getTime() + (1000 * 60 * 60 * 24 * 365)); //one year<a name="line.132"></a>
<FONT color="green">133</FONT>        <a name="line.133"></a>
<FONT color="green">134</FONT>        this.compartments = new ImageConsciousStackPanel();<a name="line.134"></a>
<FONT color="green">135</FONT>        <a name="line.135"></a>
<FONT color="green">136</FONT>        VerticalPanel hostSettingsPanel = new VerticalPanel();<a name="line.136"></a>
<FONT color="green">137</FONT>        hostSettingsPanel.setStyleName(SETTINGSPANELSTYLE);<a name="line.137"></a>
<FONT color="green">138</FONT>        HorizontalPanel row1 = new HorizontalPanel();<a name="line.138"></a>
<FONT color="green">139</FONT>        Label hostLabel = new Label("URI:");<a name="line.139"></a>
<FONT color="green">140</FONT>        hostLabel.setStyleName(EXAMPLELABELSTYLE);<a name="line.140"></a>
<FONT color="green">141</FONT>        row1.add(hostLabel);<a name="line.141"></a>
<FONT color="green">142</FONT>        this.hostLabel = new Label();<a name="line.142"></a>
<FONT color="green">143</FONT>        this.hostLabel.setStyleName(EXAMPLELABELSTYLE);<a name="line.143"></a>
<FONT color="green">144</FONT>        row1.add(this.hostLabel);<a name="line.144"></a>
<FONT color="green">145</FONT>        hostSettingsPanel.add(row1);<a name="line.145"></a>
<FONT color="green">146</FONT>        this.compartments.add(hostSettingsPanel, "&lt;div id=\"hostPanelTitleSlot\"&gt;&lt;/div&gt;", true);<a name="line.146"></a>
<FONT color="green">147</FONT>    <a name="line.147"></a>
<FONT color="green">148</FONT>        VerticalPanel userSettingsPanel = new VerticalPanel();<a name="line.148"></a>
<FONT color="green">149</FONT>        userSettingsPanel.setStyleName(SETTINGSPANELSTYLE);<a name="line.149"></a>
<FONT color="green">150</FONT>        VerticalPanel cell1row2n3 = new VerticalPanel();<a name="line.150"></a>
<FONT color="green">151</FONT>        HorizontalPanel row2 = new HorizontalPanel();<a name="line.151"></a>
<FONT color="green">152</FONT>        Label userLabel = new Label("E-mail:");<a name="line.152"></a>
<FONT color="green">153</FONT>        userLabel.setStyleName(SMALLLABELSTYLE);<a name="line.153"></a>
<FONT color="green">154</FONT>        row2.add(userLabel);<a name="line.154"></a>
<FONT color="green">155</FONT>        this.userTextBox = new TextBox();<a name="line.155"></a>
<FONT color="green">156</FONT>        String userCookie = Cookies.getCookie("user");<a name="line.156"></a>
<FONT color="green">157</FONT>        if (userCookie != null) {<a name="line.157"></a>
<FONT color="green">158</FONT>          this.userTextBox.setText(userCookie);<a name="line.158"></a>
<FONT color="green">159</FONT>        }<a name="line.159"></a>
<FONT color="green">160</FONT>        this.userTextBox.addFocusListener(this);<a name="line.160"></a>
<FONT color="green">161</FONT>        row2.add(this.userTextBox);<a name="line.161"></a>
<FONT color="green">162</FONT>        HorizontalPanel row25 = new HorizontalPanel();<a name="line.162"></a>
<FONT color="green">163</FONT>        this.userLabel = new Label("Example: user@hackystat.org");<a name="line.163"></a>
<FONT color="green">164</FONT>        this.userLabel.setStyleName(EXAMPLELABELSTYLE);<a name="line.164"></a>
<FONT color="green">165</FONT>        row25.add(this.userLabel);<a name="line.165"></a>
<FONT color="green">166</FONT>        row25.add(this.registerUserButton = new Button("Register"));<a name="line.166"></a>
<FONT color="green">167</FONT>        this.registerUserButton.addClickListener(this);<a name="line.167"></a>
<FONT color="green">168</FONT>        cell1row2n3.add(row2);<a name="line.168"></a>
<FONT color="green">169</FONT>        cell1row2n3.add(row25);<a name="line.169"></a>
<FONT color="green">170</FONT>        HorizontalPanel row3 = new HorizontalPanel();<a name="line.170"></a>
<FONT color="green">171</FONT>        Label keyLabel = new Label("Password:");<a name="line.171"></a>
<FONT color="green">172</FONT>        row3.add(keyLabel);<a name="line.172"></a>
<FONT color="green">173</FONT>        this.passwordTextBox = new PasswordTextBox();<a name="line.173"></a>
<FONT color="green">174</FONT>        String passwordCookie = Cookies.getCookie("password");<a name="line.174"></a>
<FONT color="green">175</FONT>        if (passwordCookie != null) {<a name="line.175"></a>
<FONT color="green">176</FONT>          this.passwordTextBox.setText(passwordCookie);<a name="line.176"></a>
<FONT color="green">177</FONT>        }<a name="line.177"></a>
<FONT color="green">178</FONT>        this.passwordTextBox.addFocusListener(this);<a name="line.178"></a>
<FONT color="green">179</FONT>        row3.add(this.passwordTextBox);<a name="line.179"></a>
<FONT color="green">180</FONT>        keyLabel.setStyleName(SMALLLABELSTYLE);<a name="line.180"></a>
<FONT color="green">181</FONT>        this.passwordLabel = new Label("Example: YEr7zqHKA7eg");<a name="line.181"></a>
<FONT color="green">182</FONT>        this.passwordLabel.setStyleName(EXAMPLELABELSTYLE);<a name="line.182"></a>
<FONT color="green">183</FONT>        cell1row2n3.add(row3);<a name="line.183"></a>
<FONT color="green">184</FONT>        cell1row2n3.add(this.passwordLabel);<a name="line.184"></a>
<FONT color="green">185</FONT>        userSettingsPanel.add(cell1row2n3);<a name="line.185"></a>
<FONT color="green">186</FONT>        this.compartments.add(userSettingsPanel, "&lt;div id=\"userPanelTitleSlot\"&gt;&lt;/div&gt;", true);<a name="line.186"></a>
<FONT color="green">187</FONT>        <a name="line.187"></a>
<FONT color="green">188</FONT>        VerticalPanel timerSettingsPanel = new VerticalPanel();<a name="line.188"></a>
<FONT color="green">189</FONT>        timerSettingsPanel.setStyleName(SETTINGSPANELSTYLE);<a name="line.189"></a>
<FONT color="green">190</FONT>        HorizontalPanel row4 = new HorizontalPanel();<a name="line.190"></a>
<FONT color="green">191</FONT>        Label intervalLabel = new Label("Poll (seconds):");<a name="line.191"></a>
<FONT color="green">192</FONT>        intervalLabel.setStyleName(SMALLLABELSTYLE);<a name="line.192"></a>
<FONT color="green">193</FONT>        row4.add(intervalLabel);<a name="line.193"></a>
<FONT color="green">194</FONT>        this.pollingBox = new ListBox();<a name="line.194"></a>
<FONT color="green">195</FONT>        this.pollingBox.addItem("10");<a name="line.195"></a>
<FONT color="green">196</FONT>        this.pollingBox.addItem("15");<a name="line.196"></a>
<FONT color="green">197</FONT>        this.pollingBox.addItem("30");<a name="line.197"></a>
<FONT color="green">198</FONT>        this.pollingBox.addItem("60");<a name="line.198"></a>
<FONT color="green">199</FONT>        String intervalCookie = Cookies.getCookie("interval");<a name="line.199"></a>
<FONT color="green">200</FONT>        if (intervalCookie != null) {<a name="line.200"></a>
<FONT color="green">201</FONT>          this.pollingBox.setSelectedIndex(Integer.valueOf(intervalCookie).intValue());<a name="line.201"></a>
<FONT color="green">202</FONT>        }<a name="line.202"></a>
<FONT color="green">203</FONT>        this.pollingBox.setVisibleItemCount(1); <a name="line.203"></a>
<FONT color="green">204</FONT>        this.pollingBox.addChangeListener(this);<a name="line.204"></a>
<FONT color="green">205</FONT>        row4.add(this.pollingBox);<a name="line.205"></a>
<FONT color="green">206</FONT>        timerSettingsPanel.add(row4);<a name="line.206"></a>
<FONT color="green">207</FONT>        this.compartments.add(timerSettingsPanel, "&lt;div id=\"timerPanelTitleSlot\"&gt;&lt;/div&gt;", true);<a name="line.207"></a>
<FONT color="green">208</FONT>    <a name="line.208"></a>
<FONT color="green">209</FONT>        this.dataTree = new EventCollection(this);<a name="line.209"></a>
<FONT color="green">210</FONT>        this.scrollPanel = new ScrollPanel(this.dataTree);<a name="line.210"></a>
<FONT color="green">211</FONT>        this.scrollPanel.setHeight("380px");<a name="line.211"></a>
<FONT color="green">212</FONT>        String visibleCookie = Cookies.getCookie("data-visible");<a name="line.212"></a>
<FONT color="green">213</FONT>        if (visibleCookie != null) {<a name="line.213"></a>
<FONT color="green">214</FONT>          this.scrollPanel.setVisible(Boolean.valueOf(visibleCookie).booleanValue());<a name="line.214"></a>
<FONT color="green">215</FONT>        }<a name="line.215"></a>
<FONT color="green">216</FONT>        this.compartments.add(this.scrollPanel, "&lt;div id=\"dataPanelTitleSlot\"&gt;&lt;/div&gt;", true);<a name="line.216"></a>
<FONT color="green">217</FONT>        <a name="line.217"></a>
<FONT color="green">218</FONT>        RootPanel.get("widget").add(this.compartments);<a name="line.218"></a>
<FONT color="green">219</FONT>        <a name="line.219"></a>
<FONT color="green">220</FONT>        HorizontalPanel hostColumns = new HorizontalPanel();<a name="line.220"></a>
<FONT color="green">221</FONT>        this.hostPanelImage = new Image(HOST_IMAGE);<a name="line.221"></a>
<FONT color="green">222</FONT>        hostColumns.add(this.hostPanelImage);<a name="line.222"></a>
<FONT color="green">223</FONT>        VerticalPanel hostRows = new VerticalPanel();<a name="line.223"></a>
<FONT color="green">224</FONT>        Label hostLabel2 = new Label("Host");<a name="line.224"></a>
<FONT color="green">225</FONT>        hostRows.add(hostLabel2);<a name="line.225"></a>
<FONT color="green">226</FONT>        hostLabel2.setStyleName(SMALLLABELSTYLE);<a name="line.226"></a>
<FONT color="green">227</FONT>        this.hostPanelFeedback = new Label("Set the SensorBase host address.");<a name="line.227"></a>
<FONT color="green">228</FONT>        this.hostPanelFeedback.setStyleName(EXAMPLELABELSTYLE);<a name="line.228"></a>
<FONT color="green">229</FONT>        hostRows.add(this.hostPanelFeedback);<a name="line.229"></a>
<FONT color="green">230</FONT>        hostColumns.add(hostRows);<a name="line.230"></a>
<FONT color="green">231</FONT>        RootPanel.get("hostPanelTitleSlot").add(hostColumns);<a name="line.231"></a>
<FONT color="green">232</FONT>        <a name="line.232"></a>
<FONT color="green">233</FONT>        HorizontalPanel userColumns = new HorizontalPanel();<a name="line.233"></a>
<FONT color="green">234</FONT>        this.userPanelImage = new Image(USER_IMAGE);<a name="line.234"></a>
<FONT color="green">235</FONT>        userColumns.add(this.userPanelImage);<a name="line.235"></a>
<FONT color="green">236</FONT>        VerticalPanel userCol2Rows = new VerticalPanel();<a name="line.236"></a>
<FONT color="green">237</FONT>        Label userPanelTitle = new Label("User");<a name="line.237"></a>
<FONT color="green">238</FONT>        userCol2Rows.add(userPanelTitle);<a name="line.238"></a>
<FONT color="green">239</FONT>        userPanelTitle.setStyleName(SMALLLABELSTYLE);<a name="line.239"></a>
<FONT color="green">240</FONT>        this.userPanelFeedback = new Label("Set a valid host, before entering user credentials.");<a name="line.240"></a>
<FONT color="green">241</FONT>        this.userPanelFeedback.setStyleName(EXAMPLELABELSTYLE);<a name="line.241"></a>
<FONT color="green">242</FONT>        userCol2Rows.add(this.userPanelFeedback);<a name="line.242"></a>
<FONT color="green">243</FONT>        userColumns.add(userCol2Rows);<a name="line.243"></a>
<FONT color="green">244</FONT>        RootPanel.get("userPanelTitleSlot").add(userColumns);<a name="line.244"></a>
<FONT color="green">245</FONT>        <a name="line.245"></a>
<FONT color="green">246</FONT>        HorizontalPanel timerColumns = new HorizontalPanel();<a name="line.246"></a>
<FONT color="green">247</FONT>        this.timerPanelImage = new Image(TIMER_IMAGE);<a name="line.247"></a>
<FONT color="green">248</FONT>        timerColumns.add(this.timerPanelImage);<a name="line.248"></a>
<FONT color="green">249</FONT>        VerticalPanel timerCol2Rows = new VerticalPanel();<a name="line.249"></a>
<FONT color="green">250</FONT>        Label timerPanelTitle = new Label("Interval");<a name="line.250"></a>
<FONT color="green">251</FONT>        timerCol2Rows.add(timerPanelTitle);<a name="line.251"></a>
<FONT color="green">252</FONT>        timerPanelTitle.setStyleName(SMALLLABELSTYLE);<a name="line.252"></a>
<FONT color="green">253</FONT>        this.timerPanelFeedback = new HTML("Polling approximately every " <a name="line.253"></a>
<FONT color="green">254</FONT>          + this.pollingBox.getValue(this.pollingBox.getSelectedIndex()) + " seconds.");<a name="line.254"></a>
<FONT color="green">255</FONT>        this.timerPanelFeedback.setStyleName(EXAMPLELABELSTYLE);<a name="line.255"></a>
<FONT color="green">256</FONT>        timerCol2Rows.add(this.timerPanelFeedback);<a name="line.256"></a>
<FONT color="green">257</FONT>        timerColumns.add(timerCol2Rows);<a name="line.257"></a>
<FONT color="green">258</FONT>        RootPanel.get("timerPanelTitleSlot").add(timerColumns);<a name="line.258"></a>
<FONT color="green">259</FONT>        <a name="line.259"></a>
<FONT color="green">260</FONT>        HorizontalPanel dataColumns = new HorizontalPanel();<a name="line.260"></a>
<FONT color="green">261</FONT>        if (this.scrollPanel.isVisible()) {<a name="line.261"></a>
<FONT color="green">262</FONT>          this.dataPanelImage = new Image(OPEN_BOOK);<a name="line.262"></a>
<FONT color="green">263</FONT>        } <a name="line.263"></a>
<FONT color="green">264</FONT>        else {<a name="line.264"></a>
<FONT color="green">265</FONT>          this.dataPanelImage = new Image(CLOSED_BOOK);<a name="line.265"></a>
<FONT color="green">266</FONT>        }<a name="line.266"></a>
<FONT color="green">267</FONT>        this.dataPanelImage.addClickListener(this);<a name="line.267"></a>
<FONT color="green">268</FONT>        dataColumns.add(this.dataPanelImage);<a name="line.268"></a>
<FONT color="green">269</FONT>        VerticalPanel dataCol2Rows = new VerticalPanel();<a name="line.269"></a>
<FONT color="green">270</FONT>        Label dataPanelTitle = new Label("Sensor Data");<a name="line.270"></a>
<FONT color="green">271</FONT>        dataCol2Rows.add(dataPanelTitle);<a name="line.271"></a>
<FONT color="green">272</FONT>        dataPanelTitle.setStyleName(CompositeWidget.SMALLLABELSTYLE);<a name="line.272"></a>
<FONT color="green">273</FONT>        this.dataPanelFeedback = new HTML("This viewer's data log.");<a name="line.273"></a>
<FONT color="green">274</FONT>        this.dataPanelFeedback.setStyleName(EXAMPLELABELSTYLE);<a name="line.274"></a>
<FONT color="green">275</FONT>        dataCol2Rows.add(this.dataPanelFeedback);<a name="line.275"></a>
<FONT color="green">276</FONT>        dataColumns.add(dataCol2Rows);<a name="line.276"></a>
<FONT color="green">277</FONT>        RootPanel.get("dataPanelTitleSlot").add(dataColumns);<a name="line.277"></a>
<FONT color="green">278</FONT>        this.compartments.setDataPanelImage(this.dataPanelImage, OPEN_BOOK, CLOSED_BOOK);<a name="line.278"></a>
<FONT color="green">279</FONT>      }<a name="line.279"></a>
<FONT color="green">280</FONT>      <a name="line.280"></a>
<FONT color="green">281</FONT>      /**<a name="line.281"></a>
<FONT color="green">282</FONT>       * This method creates, initializes and starts the timer task. <a name="line.282"></a>
<FONT color="green">283</FONT>       * Also initializes the request window.<a name="line.283"></a>
<FONT color="green">284</FONT>       */<a name="line.284"></a>
<FONT color="green">285</FONT>      private void initTimer() {<a name="line.285"></a>
<FONT color="green">286</FONT>        this.currPollTstamp = DateTimeFactories.makeTimestamp();<a name="line.286"></a>
<FONT color="green">287</FONT>        this.prevPollTstamp = this.currPollTstamp;<a name="line.287"></a>
<FONT color="green">288</FONT>        this.lastArrivalTime = "N/A";<a name="line.288"></a>
<FONT color="green">289</FONT>        this.poller = new Timer() {<a name="line.289"></a>
<FONT color="green">290</FONT>          public void run() {<a name="line.290"></a>
<FONT color="green">291</FONT>            poll();<a name="line.291"></a>
<FONT color="green">292</FONT>          }<a name="line.292"></a>
<FONT color="green">293</FONT>        };<a name="line.293"></a>
<FONT color="green">294</FONT>        this.poller.scheduleRepeating(<a name="line.294"></a>
<FONT color="green">295</FONT>            Integer.parseInt(this.pollingBox.getValue(this.pollingBox.getSelectedIndex())) * 1000);<a name="line.295"></a>
<FONT color="green">296</FONT>      }<a name="line.296"></a>
<FONT color="green">297</FONT>      <a name="line.297"></a>
<FONT color="green">298</FONT>      /**<a name="line.298"></a>
<FONT color="green">299</FONT>       * This method displays the passed version in the UI.<a name="line.299"></a>
<FONT color="green">300</FONT>       * @param version a string containing the version number <a name="line.300"></a>
<FONT color="green">301</FONT>       */<a name="line.301"></a>
<FONT color="green">302</FONT>      public void setVersion(String version) {<a name="line.302"></a>
<FONT color="green">303</FONT>        Window.setTitle("Hackystat: SensorDataViewer " + version);<a name="line.303"></a>
<FONT color="green">304</FONT>        RootPanel.get("version").add(new HTML("&lt;b&gt;" + version + "&lt;/b&gt;"));<a name="line.304"></a>
<FONT color="green">305</FONT>        setGadgetTitle("Hackystat: SensorDataViewer " + version);<a name="line.305"></a>
<FONT color="green">306</FONT>      }<a name="line.306"></a>
<FONT color="green">307</FONT>      <a name="line.307"></a>
<FONT color="green">308</FONT>      /**<a name="line.308"></a>
<FONT color="green">309</FONT>       * Check with the servlet to see if the host is valid.<a name="line.309"></a>
<FONT color="green">310</FONT>       */<a name="line.310"></a>
<FONT color="green">311</FONT>      private void rpcVersion() {<a name="line.311"></a>
<FONT color="green">312</FONT>        RPCServiceFactory.getInstance().getService().version(new AsyncCallback() {<a name="line.312"></a>
<FONT color="green">313</FONT>          public void onSuccess(Object result) {<a name="line.313"></a>
<FONT color="green">314</FONT>            setVersion((String) result);<a name="line.314"></a>
<FONT color="green">315</FONT>          }<a name="line.315"></a>
<FONT color="green">316</FONT>      <a name="line.316"></a>
<FONT color="green">317</FONT>          public void onFailure(Throwable caught) {<a name="line.317"></a>
<FONT color="green">318</FONT>            if (caught instanceof com.google.gwt.user.client.rpc.InvocationException) {<a name="line.318"></a>
<FONT color="green">319</FONT>              log(PRCERRORNAME, "Cannot invoke version request on servlet.");<a name="line.319"></a>
<FONT color="green">320</FONT>            } <a name="line.320"></a>
<FONT color="green">321</FONT>            else {<a name="line.321"></a>
<FONT color="green">322</FONT>              log(PRCERRORNAME, caught.toString());<a name="line.322"></a>
<FONT color="green">323</FONT>            }<a name="line.323"></a>
<FONT color="green">324</FONT>          }<a name="line.324"></a>
<FONT color="green">325</FONT>        });<a name="line.325"></a>
<FONT color="green">326</FONT>      }<a name="line.326"></a>
<FONT color="green">327</FONT>      <a name="line.327"></a>
<FONT color="green">328</FONT>      /**<a name="line.328"></a>
<FONT color="green">329</FONT>       * This method sets the name of the host uri.<a name="line.329"></a>
<FONT color="green">330</FONT>       * @param uri the sensorbase host domain and path<a name="line.330"></a>
<FONT color="green">331</FONT>       */<a name="line.331"></a>
<FONT color="green">332</FONT>      public void setHostUri(String uri) {<a name="line.332"></a>
<FONT color="green">333</FONT>        this.hostLabel.setText(uri);<a name="line.333"></a>
<FONT color="green">334</FONT>        this.rpcAvailable = true;<a name="line.334"></a>
<FONT color="green">335</FONT>        this.hostPanelImage.setUrl(HOST_IMAGE);<a name="line.335"></a>
<FONT color="green">336</FONT>        if (this.firstCalInit) {<a name="line.336"></a>
<FONT color="green">337</FONT>          rpcIsHost();<a name="line.337"></a>
<FONT color="green">338</FONT>        }<a name="line.338"></a>
<FONT color="green">339</FONT>      }<a name="line.339"></a>
<FONT color="green">340</FONT>      <a name="line.340"></a>
<FONT color="green">341</FONT>      /**<a name="line.341"></a>
<FONT color="green">342</FONT>       * Check with the servlet to get the host name from the properties file.<a name="line.342"></a>
<FONT color="green">343</FONT>       */<a name="line.343"></a>
<FONT color="green">344</FONT>      private void rpcGetHost() {<a name="line.344"></a>
<FONT color="green">345</FONT>        if (this.rpcAvailable) {<a name="line.345"></a>
<FONT color="green">346</FONT>          this.rpcAvailable = false;<a name="line.346"></a>
<FONT color="green">347</FONT>          this.hostPanelImage.setUrl(WAIT_IMAGE);<a name="line.347"></a>
<FONT color="green">348</FONT>          RPCServiceFactory.getInstance().getService().getHost(new AsyncCallback()<a name="line.348"></a>
<FONT color="green">349</FONT>          {<a name="line.349"></a>
<FONT color="green">350</FONT>            public void onSuccess(Object result) {<a name="line.350"></a>
<FONT color="green">351</FONT>              setHostUri((String) result);<a name="line.351"></a>
<FONT color="green">352</FONT>            }<a name="line.352"></a>
<FONT color="green">353</FONT>        <a name="line.353"></a>
<FONT color="green">354</FONT>            public void onFailure(Throwable caught) {<a name="line.354"></a>
<FONT color="green">355</FONT>              if (caught instanceof com.google.gwt.user.client.rpc.InvocationException) {<a name="line.355"></a>
<FONT color="green">356</FONT>                log(PRCERRORNAME, "Cannot invoke get host uri property on servlet.");<a name="line.356"></a>
<FONT color="green">357</FONT>              } <a name="line.357"></a>
<FONT color="green">358</FONT>              else {<a name="line.358"></a>
<FONT color="green">359</FONT>                log(PRCERRORNAME, caught.toString());<a name="line.359"></a>
<FONT color="green">360</FONT>              }<a name="line.360"></a>
<FONT color="green">361</FONT>            }<a name="line.361"></a>
<FONT color="green">362</FONT>          });<a name="line.362"></a>
<FONT color="green">363</FONT>        }<a name="line.363"></a>
<FONT color="green">364</FONT>      }<a name="line.364"></a>
<FONT color="green">365</FONT>    <a name="line.365"></a>
<FONT color="green">366</FONT>      /**<a name="line.366"></a>
<FONT color="green">367</FONT>       * This is the entry point method.<a name="line.367"></a>
<FONT color="green">368</FONT>       */<a name="line.368"></a>
<FONT color="green">369</FONT>      public void onModuleLoad() {<a name="line.369"></a>
<FONT color="green">370</FONT>        this.firstCalInit = true;<a name="line.370"></a>
<FONT color="green">371</FONT>        this.rpcAvailable = true;<a name="line.371"></a>
<FONT color="green">372</FONT>        initLayout();<a name="line.372"></a>
<FONT color="green">373</FONT>        rpcVersion();<a name="line.373"></a>
<FONT color="green">374</FONT>        rpcGetHost();<a name="line.374"></a>
<FONT color="green">375</FONT>        initTimer();<a name="line.375"></a>
<FONT color="green">376</FONT>      }<a name="line.376"></a>
<FONT color="green">377</FONT>    <a name="line.377"></a>
<FONT color="green">378</FONT>      /**<a name="line.378"></a>
<FONT color="green">379</FONT>       * This method performs an asynchronous remote call out to the sensor data viewer service<a name="line.379"></a>
<FONT color="green">380</FONT>       * for particular sensor data over a specified period as indicated in the URI.<a name="line.380"></a>
<FONT color="green">381</FONT>       * @param host the URI for the SensorBase<a name="line.381"></a>
<FONT color="green">382</FONT>       * @param project the project of interest<a name="line.382"></a>
<FONT color="green">383</FONT>       * @param user for authentication<a name="line.383"></a>
<FONT color="green">384</FONT>       * @param password for authentication<a name="line.384"></a>
<FONT color="green">385</FONT>       * @param startXmlTime XML-format timestamp for beginning of request interval<a name="line.385"></a>
<FONT color="green">386</FONT>       * @param endXmlTime XML-format timestamp for ending of the request interval<a name="line.386"></a>
<FONT color="green">387</FONT>       */ <a name="line.387"></a>
<FONT color="green">388</FONT>      public void rpcGetMod(String host, String project, String user, String password,<a name="line.388"></a>
<FONT color="green">389</FONT>        String startXmlTime, String endXmlTime) { <a name="line.389"></a>
<FONT color="green">390</FONT>        if ((this.hostStatus.booleanValue()) &amp;&amp; (this.userStatus.booleanValue())) {<a name="line.390"></a>
<FONT color="green">391</FONT>          RPCServiceFactory.getInstance().getService().getMod(host, project, user, password, <a name="line.391"></a>
<FONT color="green">392</FONT>            startXmlTime, endXmlTime, new AsyncCallback()<a name="line.392"></a>
<FONT color="green">393</FONT>            {<a name="line.393"></a>
<FONT color="green">394</FONT>              public void onSuccess(Object result) {<a name="line.394"></a>
<FONT color="green">395</FONT>                /** @gwt.typeArgs result &lt;java.util.ArrayList&lt;java.lang.String&gt;&gt; */<a name="line.395"></a>
<FONT color="green">396</FONT>                work((ArrayList) result);<a name="line.396"></a>
<FONT color="green">397</FONT>              }<a name="line.397"></a>
<FONT color="green">398</FONT>      <a name="line.398"></a>
<FONT color="green">399</FONT>              public void onFailure(Throwable caught) {<a name="line.399"></a>
<FONT color="green">400</FONT>                if (caught instanceof com.google.gwt.user.client.rpc.InvocationException) {<a name="line.400"></a>
<FONT color="green">401</FONT>                  log(PRCERRORNAME, "Cannot invoke method on servlet.");<a name="line.401"></a>
<FONT color="green">402</FONT>                } <a name="line.402"></a>
<FONT color="green">403</FONT>                else {<a name="line.403"></a>
<FONT color="green">404</FONT>                  log(PRCERRORNAME, caught.toString());<a name="line.404"></a>
<FONT color="green">405</FONT>                }<a name="line.405"></a>
<FONT color="green">406</FONT>              }<a name="line.406"></a>
<FONT color="green">407</FONT>            });<a name="line.407"></a>
<FONT color="green">408</FONT>        }<a name="line.408"></a>
<FONT color="green">409</FONT>      }<a name="line.409"></a>
<FONT color="green">410</FONT>    <a name="line.410"></a>
<FONT color="green">411</FONT>      /**<a name="line.411"></a>
<FONT color="green">412</FONT>       * This method performs an asynchronous remote call out to the sensor data browser service<a name="line.412"></a>
<FONT color="green">413</FONT>       * to get a list of days with data.<a name="line.413"></a>
<FONT color="green">414</FONT>       * @param hrefList a list of the hrefs of the sensor data elements to get.<a name="line.414"></a>
<FONT color="green">415</FONT>       * @param callback the treeItem to return the answer to.<a name="line.415"></a>
<FONT color="green">416</FONT>       * <a name="line.416"></a>
<FONT color="green">417</FONT>       * @gwt.typeArgs hrefList &lt;java.lang.String&gt;<a name="line.417"></a>
<FONT color="green">418</FONT>       */ <a name="line.418"></a>
<FONT color="green">419</FONT>      public void rpcGetHrefs(ArrayList hrefList, final Event callback) {<a name="line.419"></a>
<FONT color="green">420</FONT>        if ((this.hostStatus.booleanValue()) &amp;&amp; (this.userStatus.booleanValue())) {<a name="line.420"></a>
<FONT color="green">421</FONT>          RPCServiceFactory.getInstance().getService().getHrefs(this.hostLabel.getText(), <a name="line.421"></a>
<FONT color="green">422</FONT>            this.userTextBox.getText(), this.passwordTextBox.getText(), hrefList, <a name="line.422"></a>
<FONT color="green">423</FONT>            new AsyncCallback()<a name="line.423"></a>
<FONT color="green">424</FONT>            {<a name="line.424"></a>
<FONT color="green">425</FONT>              public void onSuccess(Object result) {<a name="line.425"></a>
<FONT color="green">426</FONT>                callback.insert((ArrayList)result);<a name="line.426"></a>
<FONT color="green">427</FONT>              }<a name="line.427"></a>
<FONT color="green">428</FONT>    <a name="line.428"></a>
<FONT color="green">429</FONT>              public void onFailure(Throwable caught) {<a name="line.429"></a>
<FONT color="green">430</FONT>                if (caught instanceof com.google.gwt.user.client.rpc.InvocationException) {<a name="line.430"></a>
<FONT color="green">431</FONT>                  log(PRCERRORNAME, "Cannot invoke method on servlet.");<a name="line.431"></a>
<FONT color="green">432</FONT>                } <a name="line.432"></a>
<FONT color="green">433</FONT>                else {<a name="line.433"></a>
<FONT color="green">434</FONT>                  log(PRCERRORNAME, caught.toString());<a name="line.434"></a>
<FONT color="green">435</FONT>                }<a name="line.435"></a>
<FONT color="green">436</FONT>              }<a name="line.436"></a>
<FONT color="green">437</FONT>            });<a name="line.437"></a>
<FONT color="green">438</FONT>        } <a name="line.438"></a>
<FONT color="green">439</FONT>        else {<a name="line.439"></a>
<FONT color="green">440</FONT>          callback.insert(hrefList);<a name="line.440"></a>
<FONT color="green">441</FONT>        }<a name="line.441"></a>
<FONT color="green">442</FONT>      }<a name="line.442"></a>
<FONT color="green">443</FONT>      <a name="line.443"></a>
<FONT color="green">444</FONT>      /***<a name="line.444"></a>
<FONT color="green">445</FONT>       * This function sets up the next formatted event interval times.<a name="line.445"></a>
<FONT color="green">446</FONT>       * The new time period for the query is derived &amp; the timestamps are formatted for XML.<a name="line.446"></a>
<FONT color="green">447</FONT>       */<a name="line.447"></a>
<FONT color="green">448</FONT>      private void next() {<a name="line.448"></a>
<FONT color="green">449</FONT>        this.prevPollTstamp = this.currPollTstamp;<a name="line.449"></a>
<FONT color="green">450</FONT>        this.currPollTstamp = DateTimeFactories.makeTimestamp();<a name="line.450"></a>
<FONT color="green">451</FONT>      }<a name="line.451"></a>
<FONT color="green">452</FONT>      <a name="line.452"></a>
<FONT color="green">453</FONT>      /**<a name="line.453"></a>
<FONT color="green">454</FONT>       * This is the call back for the SDVTimer task. It polls the Servlet (which communicates with<a name="line.454"></a>
<FONT color="green">455</FONT>       * the SensorBase).<a name="line.455"></a>
<FONT color="green">456</FONT>       */<a name="line.456"></a>
<FONT color="green">457</FONT>      public void poll() {<a name="line.457"></a>
<FONT color="green">458</FONT>        if (this.rpcAvailable &amp;&amp; this.hostStatus.booleanValue() &amp;&amp; this.userStatus.booleanValue()) {<a name="line.458"></a>
<FONT color="green">459</FONT>          this.rpcAvailable = false;<a name="line.459"></a>
<FONT color="green">460</FONT>          next();<a name="line.460"></a>
<FONT color="green">461</FONT>          /* this.timerPanelImage.setUrl(WAIT_IMAGE);<a name="line.461"></a>
<FONT color="green">462</FONT>          this.timerPanelFeedback.setText("Requesting data from the Sensorbase at " <a name="line.462"></a>
<FONT color="green">463</FONT>            + this.timefactory.format(this.xmlfactory.parse(this.currEventTime)) + '.');<a name="line.463"></a>
<FONT color="green">464</FONT>           */<a name="line.464"></a>
<FONT color="green">465</FONT>          rpcGetMod(hostLabel.getText(), DEFAULT, this.userTextBox.getText(), <a name="line.465"></a>
<FONT color="green">466</FONT>            this.passwordTextBox.getText(), this.prevPollTstamp, this.currPollTstamp);<a name="line.466"></a>
<FONT color="green">467</FONT>        }<a name="line.467"></a>
<FONT color="green">468</FONT>      }<a name="line.468"></a>
<FONT color="green">469</FONT>      <a name="line.469"></a>
<FONT color="green">470</FONT>      /**<a name="line.470"></a>
<FONT color="green">471</FONT>       * Log this message in the SensorDataViewer data display.<a name="line.471"></a>
<FONT color="green">472</FONT>       * @param header the message header or subject<a name="line.472"></a>
<FONT color="green">473</FONT>       * @param body the message body<a name="line.473"></a>
<FONT color="green">474</FONT>       */<a name="line.474"></a>
<FONT color="green">475</FONT>      public void log(String header, String body) {<a name="line.475"></a>
<FONT color="green">476</FONT>        String bodytimestamp = DateTimeFactories.getInstance().getBodyfactory().format(<a name="line.476"></a>
<FONT color="green">477</FONT>          DateTimeFactories.getInstance().getZonefactory().parse(this.currPollTstamp));<a name="line.477"></a>
<FONT color="green">478</FONT>        TreeItem leaf = new TreeItem(bodytimestamp + " " + "Error" + " " + "SensorDataViewer");<a name="line.478"></a>
<FONT color="green">479</FONT>        leaf.addItem("Timestamp=" + this.currPollTstamp);<a name="line.479"></a>
<FONT color="green">480</FONT>        leaf.addItem("Resource=" + "SensorDataViewer Client");<a name="line.480"></a>
<FONT color="green">481</FONT>        leaf.addItem("Host=" + this.hostLabel);<a name="line.481"></a>
<FONT color="green">482</FONT>        leaf.addItem("User=" + this.userTextBox);<a name="line.482"></a>
<FONT color="green">483</FONT>        leaf.addItem("Error:Name=" + header);<a name="line.483"></a>
<FONT color="green">484</FONT>        leaf.addItem("Error:Message=" + body);<a name="line.484"></a>
<FONT color="green">485</FONT>        this.dataTree.addItem(leaf);<a name="line.485"></a>
<FONT color="green">486</FONT>        Window.alert(body);<a name="line.486"></a>
<FONT color="green">487</FONT>      }<a name="line.487"></a>
<FONT color="green">488</FONT>      <a name="line.488"></a>
<FONT color="green">489</FONT>      /**<a name="line.489"></a>
<FONT color="green">490</FONT>       * This method digests the response from the RPC call into local data structures.<a name="line.490"></a>
<FONT color="green">491</FONT>       * @param dataCollection an ArrayList of ArrayLists of Strings containing the sensor data.<a name="line.491"></a>
<FONT color="green">492</FONT>       * <a name="line.492"></a>
<FONT color="green">493</FONT>       * @gwt.typeArgs dataCollection &lt;java.util.ArrayList&lt;java.lang.String&gt;&gt;<a name="line.493"></a>
<FONT color="green">494</FONT>       */ <a name="line.494"></a>
<FONT color="green">495</FONT>      public void work(ArrayList dataCollection) {<a name="line.495"></a>
<FONT color="green">496</FONT>        this.serverTstamp = DateTimeFactories.getInstance().getXmlfactory().parse(this.currPollTstamp);<a name="line.496"></a>
<FONT color="green">497</FONT>        String time = DateTimeFactories.getInstance().getTimefactory().format(this.serverTstamp);<a name="line.497"></a>
<FONT color="green">498</FONT>        if (!dataCollection.isEmpty()) { //NOPMD Check for non-empty condition first.<a name="line.498"></a>
<FONT color="green">499</FONT>          this.dataPanelImage.setUrl(WAIT_IMAGE);<a name="line.499"></a>
<FONT color="green">500</FONT>          this.dataPanelFeedback.setText("Processing and displaying data for " + time);<a name="line.500"></a>
<FONT color="green">501</FONT>          this.dataTree.addSensorData(dataCollection);<a name="line.501"></a>
<FONT color="green">502</FONT>          this.lastArrivalTime = <a name="line.502"></a>
<FONT color="green">503</FONT>            DateTimeFactories.getInstance().getTimefactory().format(this.dataTree.getLastTstamp());<a name="line.503"></a>
<FONT color="green">504</FONT>          this.lastCallTotal = this.dataTree.modSize();<a name="line.504"></a>
<FONT color="green">505</FONT>          this.total += this.lastCallTotal;<a name="line.505"></a>
<FONT color="green">506</FONT>          if (this.lastCallTotal == 1) {<a name="line.506"></a>
<FONT color="green">507</FONT>            this.dataPanelFeedback.setHTML(time + ": 1 newly arrived Sensor Data instance, "<a name="line.507"></a>
<FONT color="green">508</FONT>              + this.total + " total."<a name="line.508"></a>
<FONT color="green">509</FONT>              + this.newLineChar + "The last sensor data timestamp is " + this.lastArrivalTime);<a name="line.509"></a>
<FONT color="green">510</FONT>          } <a name="line.510"></a>
<FONT color="green">511</FONT>          else {<a name="line.511"></a>
<FONT color="green">512</FONT>            this.dataPanelFeedback.setHTML(time + ": " + this.lastCallTotal<a name="line.512"></a>
<FONT color="green">513</FONT>              + " newly arrived Sensor Data instances, " + this.total + " total."<a name="line.513"></a>
<FONT color="green">514</FONT>              + this.newLineChar + "The last sensor data timestamp is " + this.lastArrivalTime); <a name="line.514"></a>
<FONT color="green">515</FONT>          }<a name="line.515"></a>
<FONT color="green">516</FONT>        }<a name="line.516"></a>
<FONT color="green">517</FONT>        else {<a name="line.517"></a>
<FONT color="green">518</FONT>          this.dataPanelFeedback.setHTML(time + ": No newly arrived Sensor Data instances, "<a name="line.518"></a>
<FONT color="green">519</FONT>              + this.total + " total."<a name="line.519"></a>
<FONT color="green">520</FONT>              + this.newLineChar + "The last sensor data timestamp is " + this.lastArrivalTime); <a name="line.520"></a>
<FONT color="green">521</FONT>        }<a name="line.521"></a>
<FONT color="green">522</FONT>        <a name="line.522"></a>
<FONT color="green">523</FONT>        <a name="line.523"></a>
<FONT color="green">524</FONT>        if (this.scrollPanel.isVisible()) {<a name="line.524"></a>
<FONT color="green">525</FONT>          this.dataPanelImage.setUrl(OPEN_BOOK);<a name="line.525"></a>
<FONT color="green">526</FONT>        } <a name="line.526"></a>
<FONT color="green">527</FONT>        else {<a name="line.527"></a>
<FONT color="green">528</FONT>          this.dataPanelImage.setUrl(CLOSED_BOOK);<a name="line.528"></a>
<FONT color="green">529</FONT>        }<a name="line.529"></a>
<FONT color="green">530</FONT>        setHostStatus(Boolean.TRUE);<a name="line.530"></a>
<FONT color="green">531</FONT>        this.rpcAvailable = true;<a name="line.531"></a>
<FONT color="green">532</FONT>        resizeGadget();<a name="line.532"></a>
<FONT color="green">533</FONT>      }<a name="line.533"></a>
<FONT color="green">534</FONT>      <a name="line.534"></a>
<FONT color="green">535</FONT>      /**<a name="line.535"></a>
<FONT color="green">536</FONT>       * This method sets the state of the host uri validation.<a name="line.536"></a>
<FONT color="green">537</FONT>       * @param state Boolean represents the state of the user valid=true, invalid=false<a name="line.537"></a>
<FONT color="green">538</FONT>       */<a name="line.538"></a>
<FONT color="green">539</FONT>      public void setHostStatus(Boolean state) {<a name="line.539"></a>
<FONT color="green">540</FONT>        if (state.booleanValue()) {<a name="line.540"></a>
<FONT color="green">541</FONT>          this.hostStatus = Boolean.TRUE;<a name="line.541"></a>
<FONT color="green">542</FONT>        } <a name="line.542"></a>
<FONT color="green">543</FONT>        else {<a name="line.543"></a>
<FONT color="green">544</FONT>          this.hostStatus = Boolean.FALSE;<a name="line.544"></a>
<FONT color="green">545</FONT>        }<a name="line.545"></a>
<FONT color="green">546</FONT>        this.rpcAvailable = true;<a name="line.546"></a>
<FONT color="green">547</FONT>        this.serverTstamp = new Date();<a name="line.547"></a>
<FONT color="green">548</FONT>        displayStatus();<a name="line.548"></a>
<FONT color="green">549</FONT>        if (state.booleanValue() &amp;&amp; this.firstCalInit) {<a name="line.549"></a>
<FONT color="green">550</FONT>          rpcIsUser();<a name="line.550"></a>
<FONT color="green">551</FONT>        }<a name="line.551"></a>
<FONT color="green">552</FONT>      }<a name="line.552"></a>
<FONT color="green">553</FONT>      <a name="line.553"></a>
<FONT color="green">554</FONT>      /**<a name="line.554"></a>
<FONT color="green">555</FONT>       * This method sets the state of the user &amp; key validation.<a name="line.555"></a>
<FONT color="green">556</FONT>       * @param state Boolean represents the state of the user valid=true, invalid=false<a name="line.556"></a>
<FONT color="green">557</FONT>       */<a name="line.557"></a>
<FONT color="green">558</FONT>      public void setUserStatus(Boolean state) {<a name="line.558"></a>
<FONT color="green">559</FONT>        if (state.booleanValue()) {<a name="line.559"></a>
<FONT color="green">560</FONT>          this.userStatus = Boolean.TRUE;<a name="line.560"></a>
<FONT color="green">561</FONT>          Cookies.setCookie("user", this.userTextBox.getText(), this.cookieExpires);<a name="line.561"></a>
<FONT color="green">562</FONT>          Cookies.setCookie("password", this.passwordTextBox.getText(), this.cookieExpires);<a name="line.562"></a>
<FONT color="green">563</FONT>        } <a name="line.563"></a>
<FONT color="green">564</FONT>        else {<a name="line.564"></a>
<FONT color="green">565</FONT>          this.userStatus = Boolean.FALSE;<a name="line.565"></a>
<FONT color="green">566</FONT>        }<a name="line.566"></a>
<FONT color="green">567</FONT>        displayStatus();<a name="line.567"></a>
<FONT color="green">568</FONT>        this.rpcAvailable = true;<a name="line.568"></a>
<FONT color="green">569</FONT>        if (state.booleanValue() &amp;&amp; this.firstCalInit) {<a name="line.569"></a>
<FONT color="green">570</FONT>          this.firstCalInit = false;<a name="line.570"></a>
<FONT color="green">571</FONT>          this.compartments.showStack(3);<a name="line.571"></a>
<FONT color="green">572</FONT>          poll();<a name="line.572"></a>
<FONT color="green">573</FONT>        }<a name="line.573"></a>
<FONT color="green">574</FONT>      }<a name="line.574"></a>
<FONT color="green">575</FONT>      <a name="line.575"></a>
<FONT color="green">576</FONT>      /**<a name="line.576"></a>
<FONT color="green">577</FONT>       * This method sets the state of the host uri validation.<a name="line.577"></a>
<FONT color="green">578</FONT>       * @param state Boolean represents the state of the user valid=true, invalid=false<a name="line.578"></a>
<FONT color="green">579</FONT>       */<a name="line.579"></a>
<FONT color="green">580</FONT>      public void setRegisterUserStatus(Boolean state) {<a name="line.580"></a>
<FONT color="green">581</FONT>        //this.serverTstamp = new Date();<a name="line.581"></a>
<FONT color="green">582</FONT>        //this.userStatus = state;<a name="line.582"></a>
<FONT color="green">583</FONT>        //displayStatus();<a name="line.583"></a>
<FONT color="green">584</FONT>        if (state.booleanValue()) {<a name="line.584"></a>
<FONT color="green">585</FONT>          this.userPanelImage.setUrl(USER_IMAGE);<a name="line.585"></a>
<FONT color="green">586</FONT>          this.userPanelFeedback.setText("Registration requested for " + this.userTextBox.getText() <a name="line.586"></a>
<FONT color="green">587</FONT>            + ". Please check your e-mail for the response.");<a name="line.587"></a>
<FONT color="green">588</FONT>          this.userPanelFeedback.setStyleName(VALIDLABELSTYLE);<a name="line.588"></a>
<FONT color="green">589</FONT>        }<a name="line.589"></a>
<FONT color="green">590</FONT>        else {<a name="line.590"></a>
<FONT color="green">591</FONT>          this.userPanelImage.setUrl(USER_INVALID);<a name="line.591"></a>
<FONT color="green">592</FONT>          this.userPanelFeedback.setText("Unable to request registration for " <a name="line.592"></a>
<FONT color="green">593</FONT>              + this.userTextBox.getText());<a name="line.593"></a>
<FONT color="green">594</FONT>          this.userPanelFeedback.setStyleName(INVALIDLABELSTYLE);<a name="line.594"></a>
<FONT color="green">595</FONT>        }<a name="line.595"></a>
<FONT color="green">596</FONT>        this.rpcAvailable = true;<a name="line.596"></a>
<FONT color="green">597</FONT>      }<a name="line.597"></a>
<FONT color="green">598</FONT>      <a name="line.598"></a>
<FONT color="green">599</FONT>      /**<a name="line.599"></a>
<FONT color="green">600</FONT>       * This method sets the correct panel Images from the host and user status.<a name="line.600"></a>
<FONT color="green">601</FONT>       */<a name="line.601"></a>
<FONT color="green">602</FONT>      private void displayStatus() {<a name="line.602"></a>
<FONT color="green">603</FONT>        String timestamp = DateTimeFactories.getInstance().getBodyfactory().format(this.serverTstamp);<a name="line.603"></a>
<FONT color="green">604</FONT>        if (this.hostStatus.booleanValue()) {<a name="line.604"></a>
<FONT color="green">605</FONT>          this.hostPanelImage.setUrl(HOST_VALID);<a name="line.605"></a>
<FONT color="green">606</FONT>          this.hostPanelFeedback.setText(timestamp + ", Server contacted successfully.");<a name="line.606"></a>
<FONT color="green">607</FONT>          this.hostPanelFeedback.setStyleName(VALIDLABELSTYLE);<a name="line.607"></a>
<FONT color="green">608</FONT>          if (this.userStatus.booleanValue()) {<a name="line.608"></a>
<FONT color="green">609</FONT>            this.userPanelImage.setUrl(USER_VALID);<a name="line.609"></a>
<FONT color="green">610</FONT>            this.userPanelFeedback.setText("User " + this.userTextBox.getText() + " authorized.");<a name="line.610"></a>
<FONT color="green">611</FONT>            this.userPanelFeedback.setStyleName(VALIDLABELSTYLE);<a name="line.611"></a>
<FONT color="green">612</FONT>          } <a name="line.612"></a>
<FONT color="green">613</FONT>          else {<a name="line.613"></a>
<FONT color="green">614</FONT>            this.userPanelImage.setUrl(USER_INVALID);<a name="line.614"></a>
<FONT color="green">615</FONT>            this.userPanelFeedback.setText("User " + this.userTextBox.getText() <a name="line.615"></a>
<FONT color="green">616</FONT>              + " authorization failed.");<a name="line.616"></a>
<FONT color="green">617</FONT>            this.userPanelFeedback.setStyleName(INVALIDLABELSTYLE);<a name="line.617"></a>
<FONT color="green">618</FONT>          }<a name="line.618"></a>
<FONT color="green">619</FONT>        } <a name="line.619"></a>
<FONT color="green">620</FONT>        else {<a name="line.620"></a>
<FONT color="green">621</FONT>          this.hostPanelImage.setUrl(HOST_INVALID);<a name="line.621"></a>
<FONT color="green">622</FONT>          this.hostPanelFeedback.setText(timestamp + ", Server unavailable.");<a name="line.622"></a>
<FONT color="green">623</FONT>          this.hostPanelFeedback.setStyleName(INVALIDLABELSTYLE);<a name="line.623"></a>
<FONT color="green">624</FONT>          this.userPanelImage.setUrl(USER_IMAGE);<a name="line.624"></a>
<FONT color="green">625</FONT>          this.userPanelFeedback.setText("Set a valid host, before entering user credentials.");<a name="line.625"></a>
<FONT color="green">626</FONT>          this.userPanelFeedback.setStyleName(EXAMPLELABELSTYLE);<a name="line.626"></a>
<FONT color="green">627</FONT>        }<a name="line.627"></a>
<FONT color="green">628</FONT>      }<a name="line.628"></a>
<FONT color="green">629</FONT>      <a name="line.629"></a>
<FONT color="green">630</FONT>      /**<a name="line.630"></a>
<FONT color="green">631</FONT>       * Check with the servlet to see if the host is valid.<a name="line.631"></a>
<FONT color="green">632</FONT>       */<a name="line.632"></a>
<FONT color="green">633</FONT>      private void rpcIsHost() {<a name="line.633"></a>
<FONT color="green">634</FONT>        if (this.rpcAvailable) {<a name="line.634"></a>
<FONT color="green">635</FONT>          this.rpcAvailable = false;<a name="line.635"></a>
<FONT color="green">636</FONT>          this.hostPanelImage.setUrl(WAIT_IMAGE);<a name="line.636"></a>
<FONT color="green">637</FONT>          RPCServiceFactory.getInstance().getService().isHost(this.hostLabel.getText(),<a name="line.637"></a>
<FONT color="green">638</FONT>            new AsyncCallback()<a name="line.638"></a>
<FONT color="green">639</FONT>            {<a name="line.639"></a>
<FONT color="green">640</FONT>              public void onSuccess(Object result) {<a name="line.640"></a>
<FONT color="green">641</FONT>                setHostStatus((Boolean) result);<a name="line.641"></a>
<FONT color="green">642</FONT>              }<a name="line.642"></a>
<FONT color="green">643</FONT>          <a name="line.643"></a>
<FONT color="green">644</FONT>              public void onFailure(Throwable caught) {<a name="line.644"></a>
<FONT color="green">645</FONT>                if (caught instanceof com.google.gwt.user.client.rpc.InvocationException) {<a name="line.645"></a>
<FONT color="green">646</FONT>                  log(PRCERRORNAME, "Cannot invoke host validation on servlet.");<a name="line.646"></a>
<FONT color="green">647</FONT>                } <a name="line.647"></a>
<FONT color="green">648</FONT>                else {<a name="line.648"></a>
<FONT color="green">649</FONT>                  log(PRCERRORNAME, caught.toString());<a name="line.649"></a>
<FONT color="green">650</FONT>                }<a name="line.650"></a>
<FONT color="green">651</FONT>              }<a name="line.651"></a>
<FONT color="green">652</FONT>            });<a name="line.652"></a>
<FONT color="green">653</FONT>        }<a name="line.653"></a>
<FONT color="green">654</FONT>      }<a name="line.654"></a>
<FONT color="green">655</FONT>      <a name="line.655"></a>
<FONT color="green">656</FONT>      /**<a name="line.656"></a>
<FONT color="green">657</FONT>       * Check with the servlet to see if the user/password is valid.<a name="line.657"></a>
<FONT color="green">658</FONT>       */<a name="line.658"></a>
<FONT color="green">659</FONT>      private void rpcIsUser() {<a name="line.659"></a>
<FONT color="green">660</FONT>        if (this.rpcAvailable) {<a name="line.660"></a>
<FONT color="green">661</FONT>          this.rpcAvailable = false;<a name="line.661"></a>
<FONT color="green">662</FONT>          this.userPanelImage.setUrl(WAIT_IMAGE);<a name="line.662"></a>
<FONT color="green">663</FONT>          RPCServiceFactory.getInstance().getService().isRegistered(this.hostLabel.getText(), <a name="line.663"></a>
<FONT color="green">664</FONT>            this.userTextBox.getText(), this.passwordTextBox.getText(), new AsyncCallback()<a name="line.664"></a>
<FONT color="green">665</FONT>            {<a name="line.665"></a>
<FONT color="green">666</FONT>              public void onSuccess(Object result) {<a name="line.666"></a>
<FONT color="green">667</FONT>                setUserStatus((Boolean) result);<a name="line.667"></a>
<FONT color="green">668</FONT>              }<a name="line.668"></a>
<FONT color="green">669</FONT>    <a name="line.669"></a>
<FONT color="green">670</FONT>              public void onFailure(Throwable caught) {<a name="line.670"></a>
<FONT color="green">671</FONT>                if (caught instanceof com.google.gwt.user.client.rpc.InvocationException) {<a name="line.671"></a>
<FONT color="green">672</FONT>                  log(PRCERRORNAME, "Cannot invoke user validation on servlet.");<a name="line.672"></a>
<FONT color="green">673</FONT>                } <a name="line.673"></a>
<FONT color="green">674</FONT>                else {<a name="line.674"></a>
<FONT color="green">675</FONT>                  log(PRCERRORNAME, caught.toString());<a name="line.675"></a>
<FONT color="green">676</FONT>                }<a name="line.676"></a>
<FONT color="green">677</FONT>              }<a name="line.677"></a>
<FONT color="green">678</FONT>            });<a name="line.678"></a>
<FONT color="green">679</FONT>        }<a name="line.679"></a>
<FONT color="green">680</FONT>      }  <a name="line.680"></a>
<FONT color="green">681</FONT>      <a name="line.681"></a>
<FONT color="green">682</FONT>      /**<a name="line.682"></a>
<FONT color="green">683</FONT>       * Check with the servlet to see if the user/password is valid.<a name="line.683"></a>
<FONT color="green">684</FONT>       */<a name="line.684"></a>
<FONT color="green">685</FONT>      private void rpcRegisterUser() {<a name="line.685"></a>
<FONT color="green">686</FONT>        if (this.rpcAvailable) {<a name="line.686"></a>
<FONT color="green">687</FONT>          this.rpcAvailable = false;<a name="line.687"></a>
<FONT color="green">688</FONT>          this.userPanelImage.setUrl(WAIT_IMAGE);<a name="line.688"></a>
<FONT color="green">689</FONT>          RPCServiceFactory.getInstance().getService().registerUser(this.hostLabel.getText(), <a name="line.689"></a>
<FONT color="green">690</FONT>            this.userTextBox.getText(), new AsyncCallback()<a name="line.690"></a>
<FONT color="green">691</FONT>            {<a name="line.691"></a>
<FONT color="green">692</FONT>              public void onSuccess(Object result) {<a name="line.692"></a>
<FONT color="green">693</FONT>                setRegisterUserStatus((Boolean) result);<a name="line.693"></a>
<FONT color="green">694</FONT>              }<a name="line.694"></a>
<FONT color="green">695</FONT>    <a name="line.695"></a>
<FONT color="green">696</FONT>              public void onFailure(Throwable caught) {<a name="line.696"></a>
<FONT color="green">697</FONT>                if (caught instanceof com.google.gwt.user.client.rpc.InvocationException) {<a name="line.697"></a>
<FONT color="green">698</FONT>                  log(PRCERRORNAME, "Cannot invoke user validation on servlet.");<a name="line.698"></a>
<FONT color="green">699</FONT>                } <a name="line.699"></a>
<FONT color="green">700</FONT>                else {<a name="line.700"></a>
<FONT color="green">701</FONT>                  log(PRCERRORNAME, caught.toString());<a name="line.701"></a>
<FONT color="green">702</FONT>                }<a name="line.702"></a>
<FONT color="green">703</FONT>              }<a name="line.703"></a>
<FONT color="green">704</FONT>            });<a name="line.704"></a>
<FONT color="green">705</FONT>        }<a name="line.705"></a>
<FONT color="green">706</FONT>      }  <a name="line.706"></a>
<FONT color="green">707</FONT>      <a name="line.707"></a>
<FONT color="green">708</FONT>      /**<a name="line.708"></a>
<FONT color="green">709</FONT>       * This method is triggered when the UI changes. If the Timer field was changed, <a name="line.709"></a>
<FONT color="green">710</FONT>       * it updates the Timer task.<a name="line.710"></a>
<FONT color="green">711</FONT>       * @param sender the UI element that received an event.<a name="line.711"></a>
<FONT color="green">712</FONT>       */ <a name="line.712"></a>
<FONT color="green">713</FONT>      public void onChange(Widget sender) {<a name="line.713"></a>
<FONT color="green">714</FONT>        Integer interval = new Integer(this.pollingBox.getValue(this.pollingBox.getSelectedIndex()));<a name="line.714"></a>
<FONT color="green">715</FONT>        poller.scheduleRepeating(interval.intValue() * 1000);<a name="line.715"></a>
<FONT color="green">716</FONT>        this.timerPanelFeedback.setText("Polling approximately every " <a name="line.716"></a>
<FONT color="green">717</FONT>            + this.pollingBox.getValue(this.pollingBox.getSelectedIndex()) + " seconds.");<a name="line.717"></a>
<FONT color="green">718</FONT>        Cookies.setCookie("interval", String.valueOf(this.pollingBox.getSelectedIndex()), <a name="line.718"></a>
<FONT color="green">719</FONT>            this.cookieExpires);<a name="line.719"></a>
<FONT color="green">720</FONT>      }<a name="line.720"></a>
<FONT color="green">721</FONT>      <a name="line.721"></a>
<FONT color="green">722</FONT>      /**<a name="line.722"></a>
<FONT color="green">723</FONT>       * Nothing happens when the settings fields are given focus.<a name="line.723"></a>
<FONT color="green">724</FONT>       * @param sender the UI widget that was given focus<a name="line.724"></a>
<FONT color="green">725</FONT>       */<a name="line.725"></a>
<FONT color="green">726</FONT>      public void onFocus(Widget sender) {<a name="line.726"></a>
<FONT color="green">727</FONT>        /* nothing to do here */<a name="line.727"></a>
<FONT color="green">728</FONT>      }<a name="line.728"></a>
<FONT color="green">729</FONT>    <a name="line.729"></a>
<FONT color="green">730</FONT>      /** <a name="line.730"></a>
<FONT color="green">731</FONT>       * When any of the settings fields lose focus then check to see if the information is valid.<a name="line.731"></a>
<FONT color="green">732</FONT>       * @param sender the UI widget that is losing focus.<a name="line.732"></a>
<FONT color="green">733</FONT>       */<a name="line.733"></a>
<FONT color="green">734</FONT>      public void onLostFocus(Widget sender) {<a name="line.734"></a>
<FONT color="green">735</FONT>        if (sender.equals(this.hostLabel)) {<a name="line.735"></a>
<FONT color="green">736</FONT>          rpcIsHost();<a name="line.736"></a>
<FONT color="green">737</FONT>        } <a name="line.737"></a>
<FONT color="green">738</FONT>        else if ((sender.equals(this.userTextBox)) || (sender.equals(this.passwordTextBox))) {<a name="line.738"></a>
<FONT color="green">739</FONT>          rpcIsUser();<a name="line.739"></a>
<FONT color="green">740</FONT>        }<a name="line.740"></a>
<FONT color="green">741</FONT>      }<a name="line.741"></a>
<FONT color="green">742</FONT>      <a name="line.742"></a>
<FONT color="green">743</FONT>      /** <a name="line.743"></a>
<FONT color="green">744</FONT>       * Listens for clicks on the UI elements.<a name="line.744"></a>
<FONT color="green">745</FONT>       * @param sender the UI widget that is losing focus.<a name="line.745"></a>
<FONT color="green">746</FONT>       */<a name="line.746"></a>
<FONT color="green">747</FONT>      public void onClick(Widget sender) {<a name="line.747"></a>
<FONT color="green">748</FONT>        if (sender.equals(this.dataPanelImage)) {<a name="line.748"></a>
<FONT color="green">749</FONT>          Cookies.setCookie("data-visible", String.valueOf(this.scrollPanel.isVisible()),<a name="line.749"></a>
<FONT color="green">750</FONT>              this.cookieExpires);<a name="line.750"></a>
<FONT color="green">751</FONT>          if (this.scrollPanel.isVisible()) {<a name="line.751"></a>
<FONT color="green">752</FONT>            this.scrollPanel.setVisible(false);<a name="line.752"></a>
<FONT color="green">753</FONT>            this.dataPanelImage.setUrl(CLOSED_BOOK);<a name="line.753"></a>
<FONT color="green">754</FONT>          } <a name="line.754"></a>
<FONT color="green">755</FONT>          else {<a name="line.755"></a>
<FONT color="green">756</FONT>            this.scrollPanel.setVisible(true);<a name="line.756"></a>
<FONT color="green">757</FONT>            this.dataPanelImage.setUrl(OPEN_BOOK);<a name="line.757"></a>
<FONT color="green">758</FONT>          }<a name="line.758"></a>
<FONT color="green">759</FONT>        } <a name="line.759"></a>
<FONT color="green">760</FONT>        else if (sender.equals(this.registerUserButton)) {<a name="line.760"></a>
<FONT color="green">761</FONT>          rpcRegisterUser();<a name="line.761"></a>
<FONT color="green">762</FONT>        }<a name="line.762"></a>
<FONT color="green">763</FONT>      }<a name="line.763"></a>
<FONT color="green">764</FONT>    }<a name="line.764"></a>




























































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